Home / 13,518.10-20,277.19-3,657.62

Finding the Fourth Proportional to 13,518.10, 20,277.19 and 3,657.62

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Solution

The fourth proportional to 13,518.10, 20,277.19 and 3,657.62 is: 5,486.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,518.10 : 20,277.19 = 3,657.62 : x
  2. Step 2: Convert to fraction form
    13,518.10/20,277.19 = 3,657.62/x
  3. Step 3: Cross multiply
    13,518.10x = 20,277.19 × 3,657.62
  4. Step 4: Simplify right side
    13,518.10x = 74,166,255.69
  5. Step 5: Solve for x
    x = 74,166,255.69/13,518.10
  6. Step 6: Final answer
    x = 5,486.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.